Results 131 to 140 of about 5,041 (178)

Sources of endolymph and EP

Archives of Oto-Rhino-Laryngology, 1977
The source of EP and the production of the endolymph are often considered to be at the stria vascularis. However, the significance of Reissner's membrane in maintaining the ionic composition of the endolymph cannot be ruled out. We perfused the entire perilymphatic space of guinea pigs with paraffin oil to determine the effects on the endolymph and ...
T, Yamashita, W, Arnold, K H, Vosteen
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The Viscosity of the Pike’s Endolymph

Journal of Experimental Biology, 1970
ABSTRACT A micro method, based on Stoke’s law corrected for the influence of adjacent walls, if used for the determination of the absolute viscosity of the pike’s endolymph. Samples of maximally 19 μl were used. The absolute viscosity has an average value of 1·20 ±0·08 cP at 23 °C for ten individual pike labyrinths.
J. H. Ten Kate, J. W. Kuiper
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Fluid Kinetics of Endolymph during Calorization

Acta Oto-Laryngologica, 1990
Various theories on the mechanism of caloric vestibular excitability are discussed and compared with our model, which involves two factors of endolymph movement: thermoconvection and fluid expansion. With this theory, caloric nystagmus in microgravity can be explained, as well as certain phenomena on earth, such as different vestibular responses ...
H W, Pau, W, Limberg
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The composition of the endolymph, perilymph

Comparative Biochemistry and Physiology, 1961
Abstract 1. (1) Serum, cranial fluid, perilymph, endolymph and jelly from the ampullae of Lorenzini of Raja have been analysed for Na, K, Cl and urea. 2. (2) The concentrations in mM/kg water are: Na K Cl Urea Perilymph 281 3·54 321 447 Endolymph 295 63·4 391 381 Lorenzini jelly 443 12·5 581 74·8 ...
R.W. Murray, W.T.W. Potts
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Isoenzymes of Lactic Dehydrogenase of the Perilymph and the Endolymph

Acta Oto-Laryngologica, 1969
Enzyme dehydrogenase is directly related to carbohydrate metabolism. By histochemical methods LDH was found in some hair cells and the stria vascularis. Microchemical methods provided LDH iso-enzyme patterns in the endo- and perilymph.
P, Kluyskens, W, Verstraete
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Cationic changes in endolymph during hypoglycemia

The Laryngoscope, 1972
AbstractExperimentally induced hypoglycemia, using insulin as the hypoglycemic agent, was carried out, using three groups of guinea pigs. The differentiating factor was the time sequence. After the animals had been hypoglycemic for periods of time ranging from one to three hours, the cochlear endolymph.
M, Mendelsohn, J, Roderique
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Cations in the Endolymph With Noise-Induced Deafness

Archives of Otolaryngology - Head and Neck Surgery, 1971
The endolymphatic Na+and K+changes in response to intense acoustical stimulation were monitored in vivo with cation sensitive glass electrodes in normal and noise-induced deaf guinea pigs to study the effect of destruction of the organ of Corti on endolymphatic cationic changes.
T, Nakashima, N L, Meiring, J B, Snow
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On the chemical composition of the human perilymph and endolymph

The Laryngoscope, 1950
AbstractSUMMARY. 1. Five specimens of perilymph were obtained from the lateral semicircular canal of humans while performing Day operations for Ménière's disease2. One specimen of endolymph was collected from a patient with Ménière's disease during a Portmann operation3.
J G, WALTNER, S, RAYMOND
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Endolymph pressure in Meniere's disease

Otolaryngology–Head and Neck Surgery, 1990
During the streptomycin perfusion/shunt of the lateral semicircular duct operation for Meniere's disease, the lateral semicircular duct is exposed by removal of the bone of the lateral semicircular canal. Before perfusion with streptomycin and creation of a shunt in the lateral semicircular duct, the pressure in the lateral semicircular duct is ...
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Fluid Kinetics of Endolymph during Rotation

Acta Oto-Laryngologica, 1990
Rotatory vestibular excitability is discussed on the basis of a fluid-mechanical theory. The principle of this theory, already described for caloric excitation, is that appropriate stimulus causes flows within the endolymph. Experimental and mathematical approaches indicate these flows to be essentially the same in caloric as in rotatory stimulation ...
H W, Pau, W, Limberg
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